Airgas Two Stage Brass 0-100 psi General Purpose Cylinder Regulator CGA-540These unique patented general purpose, two stage regulators are recommended for analytical,non corrosive, general plant, pilot plant and mainte nance shop applications. These regulators have aunique design to reduce weight and make the regulatormore durable. The composite bonnet and the outletvalve are incorporated into the regulator body to reduceweight. The external nickel plating, along with the com posite bonnets, allows the exterior surfaces to